trying to make new Language object based on English

Hello,

I would like to create a Microsoft.Office.Interpol.Word.Dictionary object that's based on the English language but with additional words. How can I do that?

Here is the constructor for my SilcoreseDictionary class:

Code:

---

    class SilcoreseDictionary : Microsoft.Office.Interop.Word.Dictionary
    {
        private Microsoft.Office.Interop.Word.Application _application = null;

        public SilcoreseDictionary()
        {
            _application = new Microsoft.Office.Interop.Word.Application();

            Microsoft.Office.Interop.Word.Language localLanguage = null;
            foreach (Microsoft.Office.Interop.Word.Language l in _application.Languages)
            {
                if (l.Name.Contains("English (US)"))
                {
                    localLanguage = l;
                    break;
                }
            }

            if (localLanguage != null)
            {
                // make this a copy of localLanguage.ActiveSpellingDictionary
            }
        }
    }

---

I would like to make the SilcoreDictionary class a copy of the ActiveSpellingDictionary of the English (US) language that it finds in the Application's language list. I would then like to add more vocabulary to it. Is this possible?